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SIGNIFICANT ACCOUNTING POLICIES - Dividends, Advertising and Marketable securities (Details) - USD ($)		12 Months Ended
	Jan. 24, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounting policies:
Prepaid expenses related to unamortized product brochure costs		$ 194,000	$ 132,000
Selling, general and administrative expenses
Accounting policies:
Advertising expenses		$ 2,147,000	$ 1,645,000	$ 2,013,000
Dividend declared
Accounting policies:
Amount of dividend payable in cash per share		$ 0.14
Dividends payable, date declared	Jan. 24, 2023
Dividend payable, date to be payable		Mar. 10, 2023
Dividends payable, date of record		Feb. 10, 2023

X

- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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